柴油车尾气中碳烟颗粒净化研究
张英才 , 陈明功 , 潘帆 , 荣俊锋 , 李鹏 , 王志荣 , 李明利 , 姚会军
现代化工 ›› 2026, Vol. 46 ›› Issue (2) : 166 -173.
柴油车尾气中碳烟颗粒净化研究
Study on the purification of soot particles from diesel exhaust
In this study,a self-researched concurrent-flow supergravity rotating packed bed (RPB) system was introduced to significantly improve the capture efficiency of micrometer-sized particles based on the gas-liquid coupling mechanism.The supergravity factor (0-580),gas-phase flow rate (2.43-7.05 m/s),and liquid spray density [4-16 m3/(m2·h)] were utilized as the principal study parameters.A systematic experimental study was conducted to characterize the pressure drop of the supergravity rotating packed bed system,including several key parameters such as static packing pressure drop,centrifugal pressure drop and total pressure drop.The test results show that the capture efficiency of the system for fine particles reaches 98.1% with a supergravity factor of 580,a liquid spray density of 16 m3/(m2·h) and a gas-phase flow rate of 2.43 m/s,which is an excellent performance.Based on the experimental data,a prediction model for the gas-phase pressure drop was successfully established,and the deviation of the pressure drop prediction of the model was within ±14%.The RPB system has a good application prospect in diesel exhaust treatment,and the established model can provide a reference for the system optimization design.
co-current rotating packed bed / gas phase pressure drop / removal rate / soot particles
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安徽省现代环境工程国际联合研究中心(安徽理工大学)开放基金重点项目(XDHJGC2022002)
安徽省现代环境工程国际联合研究中心(安徽理工大学)开放基金重点项目(XDHJGC2024003)
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